//定制请求的实例

//导入axios  npm install axios
import axios from 'axios';
import {ElMessage} from 'element-plus'
//定义一个变量,记录公共的前缀  ,  baseURL
const baseURL = '/api';
const instance = axios.create({baseURL})
import {useTokenStore} from "@/stores/token.js"
//添加请求拦截器
instance.interceptors.request.use(
    (config) => {
        //请求前的回调
        //添加token
        const tokenStore = useTokenStore();
        if (tokenStore.token) {
            config.headers.Authorization = tokenStore.token;
        }
        return config;
    },
    (err) => {
        //请求错误的回调
        Promise.reject(err);
    }
)
/*import {useRouter} from 'vue-router'
const router = useRouter();*/
import router from '@/router'
//添加响应拦截器
instance.interceptors.response.use(
    result => {
        //判断业务状态码
        if (result.data.code === 0) {
            //操作成功
            return result.data;
        }
        //操作失败
        ElMessage.error(result.data.message ? result.data.message : '服务异常')
        //异步操作的状态转换为失败
        return Promise.reject(result.data);
    }, err => {
        //判断状态码
        if (err.response.status === 401) {
            ElMessage.error('登录过期')
            //跳转到登录页
            router.push('/login');
        } else {
            ElMessage.error('服务异常')
        }
        return Promise.reject(err);//异步的状态转化成失败的状态
    }
)

export default instance;